William — #10 US boys' name

What the Data Says About William

The Social Security Administration has registered 4,189,004 babies named William between 1880 and 2024, spanning 145 consecutive years of U.S. birth records. As a boy's name, William currently holds the #10 rank among boys for 2024. The name reached its historical peak in 1947, when 67,001 babies received it in a single year.

Decade-level aggregation shows that William performed strongest in the 1950s, accumulating 591,226 births during that ten-year window. Across the 15 decades of recorded activity, William shows a clear decline from its mid-century high. Geographically, the name is most concentrated in New York, which accounts for 324,993 births — the largest state-level total in the dataset — followed by Pennsylvania and California. In total, SSA state-level files list William in 51 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for William in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 4,189,004 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.